CN110185768B - Cam and cam mechanism - Google Patents
Cam and cam mechanism Download PDFInfo
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- CN110185768B CN110185768B CN201910538653.8A CN201910538653A CN110185768B CN 110185768 B CN110185768 B CN 110185768B CN 201910538653 A CN201910538653 A CN 201910538653A CN 110185768 B CN110185768 B CN 110185768B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 15
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000033228 biological regulation Effects 0.000 claims description 2
- 238000013459 approach Methods 0.000 description 10
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The application discloses a cam and a cam mechanism, wherein the cam is arranged on a frame and used for guiding a driven member to move, and the cam comprises: the support block comprises a bottom surface and a first adjusting surface, and the bottom surface is used for being connected with the frame; the guide block comprises a guide surface and a second adjusting surface, the guide surface is used for guiding the driven piece to move, and the second adjusting surface is attached to the first adjusting surface; the guide block is matched with the first adjusting surface through the second adjusting surface to realize sliding relative to the supporting block so as to adjust the distance between the guide surface and the bottom surface. Through the mode, the distance between the guide surface and the bottom surface of the cam can be adjusted, so that the height of the cam can be adjusted, and the self-adaptability of the cam is improved.
Description
Technical Field
The invention relates to the technical field of mechanical transmission, in particular to a cam and a cam mechanism.
Background
The cam is a guiding means, and the guided mechanism is connected with the cam in a sliding way through a roller and can move along the cam under the driving of the driving mechanism. In various machines, particularly automatons and automatic control devices, cam mechanisms of various forms are widely used, which are fast in response, simple and compact, capable of meeting various complex movement requirements, and irreplaceable in production.
In some devices with high guiding precision requirements, the position requirement of the cam is high, and correct guiding can be realized only if the installation position of the cam is accurate, so that the guiding mechanism can be ensured to operate accurately. The cam formed by general mechanical processing is fixed, the height of the cam is difficult to adjust, under the high-precision requirement, the integral cam and the track preset by the guided mechanism can have height difference, and the cam is difficult to adjust, so that the self-adaptability of the cam is poor.
Disclosure of Invention
The invention mainly solves the technical problem of providing a cam and a cam mechanism, which can adjust the distance between a guide surface and a bottom surface of the cam to adjust the height of the cam, thereby improving the self-adaptability of the cam.
In order to solve the above technical problem, one technical solution adopted by the present invention is to provide a cam, where the cam is disposed on a frame and is used for guiding a follower to move, and the cam includes: the support block comprises a bottom surface and a first adjusting surface, and the bottom surface is used for being connected with the frame; the guide block comprises a guide surface and a second adjusting surface, the guide surface is used for guiding the driven piece to move, and the second adjusting surface is attached to the first adjusting surface; the guide block is matched with the first adjusting surface through the second adjusting surface to realize sliding relative to the supporting block so as to adjust the distance between the guide surface and the bottom surface.
According to an embodiment of the invention, the cam comprises: the connecting blocks are respectively connected with the supporting blocks and the guide blocks; the connecting block with one of the supporting shoe with one fixed connection in the guide piece, the connecting block with another of the supporting shoe with the guide piece is connected through first mounting hole and the second mounting hole of mutually supporting, wherein, first mounting hole is waist type hole, first mounting hole is along being parallel to the extending direction setting of first regulation face.
According to a specific embodiment of the present invention, the guide block includes a first movable block and a second movable block, and the first movable block is located between the support block and the second movable block; the first movable block comprises a second adjusting surface and a third adjusting surface, the second movable block comprises a fourth adjusting surface and a guiding surface, and the fourth adjusting surface is attached to the third adjusting surface; the first movable block is matched with the first adjusting surface through the second adjusting surface to realize sliding relative to the supporting block, and the second movable block is matched with the fourth adjusting surface through the third adjusting surface to enable the second movable block to be close to or far away from the supporting block when the first movable block slides relative to the supporting block, so that the distance between the guide surface and the bottom surface is adjusted.
According to an embodiment of the invention, the cam comprises: the connecting block is respectively connected with the supporting block, the first movable block and the second movable block; the connecting block is connected with the first movable block through a first mounting hole and a second mounting hole which are matched with each other, wherein the first mounting hole is a waist-shaped hole, and the first mounting hole is arranged along the extending direction parallel to the first adjusting surface or the second adjusting surface; the connecting block is fixedly connected with one of the supporting block and the second movable block, the connecting block is connected with the other one of the supporting block and the second movable block through a third mounting hole and a fourth mounting hole which are matched with each other, wherein the third mounting hole is a waist-shaped hole, and the third mounting hole is arranged along a moving direction parallel to the second movable block when the second movable block is close to or far away from the supporting block.
According to an embodiment of the invention, the cam comprises: the guide block is fixedly arranged on the side face of one of the supporting block and the second movable block, the guide block comprises a clamping groove which is formed by sinking along the moving direction parallel to the second movable block when the second movable block is close to or far away from the supporting block, and the side face of the other one of the supporting block and the second movable block is inserted into the clamping groove and can slide in the clamping groove.
According to a specific embodiment of the present invention, the guide block is connected to the second movable block or the support block through a fifth mounting hole and a sixth mounting hole that are mutually matched, where the fifth mounting hole is a waist-shaped hole, and the fifth mounting hole is disposed along a moving direction parallel to when the second movable block approaches or approaches to or departs from the support block.
According to an embodiment of the invention, the supporting block comprises an adjusting block and a bottom block, and the adjusting block is positioned between the guiding block and the bottom block; the adjusting block comprises a first adjusting surface and a fifth adjusting surface, the bottom block comprises a sixth adjusting surface and a bottom surface, and the fifth adjusting surface is attached to the sixth adjusting surface; the adjusting block is matched with the sixth adjusting surface through the fifth adjusting surface to realize sliding relative to the bottom block, so that the relative position between the guide surface and the bottom surface is adjusted under the condition that the distance between the guide surface and the bottom surface is kept unchanged.
According to a specific embodiment of the invention, the adjusting block is connected with the bottom block through a seventh installation hole and an eighth installation hole which are matched with each other, wherein the seventh installation hole is a waist-shaped hole, and the seventh installation hole is arranged along a direction parallel to the sliding direction of the adjusting block relative to the bottom block.
According to an embodiment of the invention, the cam further comprises: the recording assembly comprises a dial indicator, a mounting plate and a top block; the supporting block is fixedly arranged on one of the supporting block and the guiding block, the mounting plate is fixedly arranged on the other one of the supporting block and the guiding block, the dial indicator is arranged on the mounting plate and comprises an abutting end, and the abutting end is used for abutting against the supporting block so as to record the distance between the mounting plate and the supporting block.
In order to solve the above technical problems, another technical solution adopted by the present invention is to provide a cam mechanism, including: a frame and a follower; the cam comprises a bottom surface and a guide surface, the cam is connected with the rack through the bottom surface, the cam guides the follower to move through the guide surface, and the cam is the cam.
The beneficial effects of the invention are as follows: the cam is formed by splicing the supporting block and the guide block in a manner different from the prior art, the supporting block comprises a bottom surface and a first adjusting surface, the bottom surface is connected with the frame, the guide block comprises a guide surface and a second adjusting surface, the guide surface is used for guiding the movement of the driven piece, the second adjusting surface is attached to the first adjusting surface, the guide block slides relative to the supporting block by matching the second adjusting surface with the first adjusting surface, and therefore the distance between the guide surface and the bottom surface can be adjusted, namely the height of the cam is adjusted, and the self-adaptability of the cam can be improved.
Drawings
FIG. 1 is a schematic diagram of a front view of a first embodiment of a cam provided by the present invention;
FIG. 2 is a schematic diagram of a front view of a second embodiment of a cam provided by the present invention;
FIG. 3 is a schematic perspective view of the cam of FIG. 2;
Fig. 4 is a schematic structural view of an embodiment of a cam mechanism provided by the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
The cam is a guiding mechanism, the guided follower is connected with the cam in a sliding way, so that the follower can move along the cam, but in some devices with high guiding precision requirements, the position requirement of the cam is higher, and only the installation position of the cam is accurate, the follower can be guided correctly, and the accurate operation of the follower is ensured. The cam of the application is arranged on the frame and is used for guiding the follower to move. Referring to fig. 1, fig. 1 is a schematic front view of a cam according to a first embodiment of the present application. The cam 10 in the present embodiment includes a support block 100 and a guide block 102; the supporting block 100 comprises a bottom surface 1000 and a first adjusting surface 1002, wherein the bottom surface 1000 is used for being fixedly connected with the rack; the guide block 102 is slidably arranged on the support block 100, the guide block 102 comprises a guide surface 1020 and a second adjusting surface 1022, the guide surface 1020 is used for guiding the movement of the driven member, and the second adjusting surface 1022 is jointed with the first adjusting surface 1002; the guide block 102 is slidably movable relative to the support block 100 by the second adjustment surface 1022 cooperating with the first adjustment surface 1002 to adjust the distance between the guide surface 1020 and the bottom surface 1000. Specifically, the first adjusting surface 1002 and the second adjusting surface 1022 are inclined surfaces that are disposed in parallel, and thus, when the second adjusting surface 1022 moves upward along the inclined surface of the first adjusting surface 1002, the guide surface 1020 is elevated relative to the bottom surface 1000; the guide surface 1020 descends relative to the bottom surface 1000 as the second adjustment surface 1022 moves downward along the incline of the first adjustment surface 1002.
It is understood that the bottom surface 1000 and the guide surface 1020 may or may not be parallel in the present application, where the guide surface 1020, that is, the track required by the guided follower to move, may be a horizontal surface, or may be an inclined surface, and the follower slidably contacts the guide surface 1020 and may move along the guide surface 1020. The distance between the guide surface 1020 of the guide block 102 and the bottom surface 1000 of the support block 100, which is adjusted by sliding the guide block 102 relative to the support block 100, is actually the height between any point on the guide surface 1020 and the bottom surface 1000, and the distance between the guide surface 1020 and the bottom surface 1000, i.e. the distance between the guide surface 1020 and the frame, is adjusted due to the fixed connection between the bottom surface 1000 and the frame, so that the height adjustment of the cam 10 relative to the frame is realized. Specifically, taking the example of the parallel arrangement between the bottom surface 1000 and the guide surface 1020, one of the first adjusting surface 1002 and the second adjusting surface 1022 is a downward surface, and the other is an upward surface, as shown in fig. 1, the height of the first adjusting surface 1002 decreases from left to right, the length of the supporting block 100 decreases in the vertical direction, the height of the second adjusting surface 1022 decreases from left to right, but the length of the guide block 102 increases in the vertical direction, and the first adjusting surface 1002 is parallel to the second adjusting surface 1022. When one of the support block 100 or the guide block 102 moves leftward with respect to the other, the guide surface 1020 rises with respect to the bottom surface 1000, i.e., the distance between the guide surface 1020 and the bottom surface 1000 becomes large, and when moves rightward, the guide surface 1020 falls with respect to the bottom surface 1000, i.e., the distance between the guide surface 1020 and the bottom surface 1000 becomes small.
In this embodiment, the cam 10 is formed by splicing the support block 100 and the guide block 102, where the support block 100 includes the bottom surface 1000 and the first adjusting surface 1002, because the support block 100 can be fixedly connected with the frame through the bottom surface 1000, that is, the support block 100 is fixed relative to the follower, and the guide block 102 is slidably disposed on the support block 100, and the guide block 102 includes the guide surface 1020 and the second adjusting surface 1022, the cam 10 of the present application can adjust the height of the guide surface 1020 relative to the frame by sliding the guide block 102 relative to the support block 100, specifically, since the second adjusting surface 1022 is in fit with the first adjusting surface 1002, the guide block 102 can slide relative to the support block 100 by matching the second adjusting surface 1022 with the first adjusting surface 1002, so that the adaptability of the cam 10 is high.
Further, the cam 10 further includes a connection block 104, and the connection block 104 is connected to the support block 100 and the guide block 102, respectively; specifically, the connection block 104 is fixedly connected with one of the support block 100 and the guide block 102, and the connection block 104 is connected with the other of the support block 100 and the guide block 102 through a first mounting hole 1040 and a second mounting hole 1042 that are mutually matched, wherein the first mounting hole 1040 is a waist-shaped hole, and the first mounting hole 1040 is disposed along an extending direction parallel to the first adjusting surface 1002.
As shown in fig. 1, in this embodiment, one end of the connecting block 104 is fixedly connected with the supporting block 100, while the other end of the connecting block 104 is provided with a first mounting hole 1040, and a second mounting hole 1042 is provided at a position on the guiding block 102 corresponding to the first mounting hole 1040, and since the first mounting hole 1040 is a waist-shaped hole, the first mounting hole 1040 is provided in a direction parallel to the extending direction of the first adjusting surface 1002 and the second adjusting surface 1022, and the second mounting hole 1042 may be a screw hole, so when the height of the cam 10 is adjusted, the first mounting hole 1040 and the second mounting hole 1042 are loosened, so that the supporting block 100 and the guiding block 102 can slide relatively. Further, in order to ensure that the second mounting holes 1042 can be always exposed in the first mounting holes 1040, a plurality of second mounting holes 1042 may be provided at intervals along the extending direction of the first adjusting surface 1002 or the second adjusting surface 1022, so that the second mounting holes 1042 are always exposed in the first mounting holes 1040 when the first adjusting surface 1002 and the second adjusting surface 1022 slide relatively. The support block 100 and the guide block 102 can be fixed by adjusting the cam 10 to a desired height and locking the first and second mounting holes 1040 and 1042. Of course, in other embodiments, the first mounting holes 1040 may be formed in the guide block 102, and the corresponding second mounting holes 1042 may be formed in the support block 100; in addition, one end of the connection block 104 may be fixedly connected with the guide block 102, and the other end of the connection block 104 may be connected with the support block 100 through the first mounting hole 1040 and the second mounting hole 1042 which are mutually matched; and the connecting block 104 of the application can be provided with one or more connecting blocks according to actual needs, so as to better fix the supporting block 100 and the guiding block 102 and ensure the guiding stability of the cam 10.
In a specific application scenario, the first mounting hole 1040 and the second mounting hole 1042 may be fixed by a bolt, when the distance between the guide surface 1020 of the guide block 102 and the bottom surface 1000 of the support block 100 needs to be adjusted, the bolt between the first mounting hole 1040 and the second mounting hole 1042 is first loosened, so that the second adjusting surface 1022 slides relatively to the first adjusting surface 1002, when the guide block 102 slides to a certain position relatively to the support block 100 through the cooperation of the second adjusting surface 1022 and the first adjusting surface 1002, the guide surface 1020 and the bottom surface 1000 reach a required distance, that is, the guide surface 1020 is adjusted to a required height, and then the bolt is inserted into the first mounting hole 1040 and the second mounting hole 1042 and locked, so that the cam 10 may be fixed.
Further, a plurality of second mounting holes 1042 may be formed in the guide block 102, the support block 100, or the connection block 104 in a direction parallel to the extension direction of the first adjusting surface 1002 and the second adjusting surface 1022, so as to ensure that at least one second mounting hole 1042 is exposed in the first mounting hole 1040.
Further, the cam 10 also includes a registration assembly 106, the registration assembly 106 including a dial indicator 1060, a mounting plate 1062, and a top block 1064; the top block 1064 is fixedly disposed on one of the support block 100 and the guide block 102, the mounting plate 1062 is fixedly disposed on the other of the support block 100 and the guide block 102, the dial indicator 1060 is disposed on the mounting plate 1062, the dial indicator 1060 includes a abutting end 10600, and the abutting end 10600 is used for abutting against the top block 1064 to record a distance between the mounting plate 1062 and the top block 1064.
As shown in fig. 1, in the present embodiment, the top block 1064 is fixedly disposed on the supporting block 100, the mounting plate 1062 is fixedly disposed on the guiding block 102, and the dial indicator 1060 is disposed on the mounting plate 1062; it will be appreciated that, taking the plane of the top block 1064 abutted by the abutting end 10600 and the bottom surface 1000 being parallel, the abutting end 10600 is perpendicular to the plane abutted by the abutting end 10600, when the guide block 102 is located at the first position relative to the support block 100, the dial indicator 1060 abuts the top block 1064 through the abutting end 10600, the distance L1 between the mounting plate 1062 and the top block 1064 can be recorded, and when the guide block 102 is located at the second position relative to the support block 100, the dial indicator 1060 abuts the top block 1064 through the abutting end 10600, the distance L2 between the mounting plate 1062 and the top block 1064 can be recorded, at this time, by calculating the difference between L1 and L2, that is, the value adjusted by the distance between the guide surface 1020 and the bottom surface 1000 when the guide block 102 slides from the first position to the second position relative to the support block 100 through the cooperation of the second adjusting surface 1022 and the first adjusting surface 1002. Therefore, the distance between the mounting plate 1062 and the top block 1064 recorded by the dial indicator 1060 can reflect the relative position of the guide block 102 and the support block 100 corresponding to the distance, so that in practical application, for example, the second adjusting surface 1022 slides relative to the first adjusting surface 1002, when the distance displayed by the dial indicator 1060 is L1, it can be stated that the guide block 102 is located at the first position relative to the support block 100, and then the distance between the guide surface 1020 and the bottom surface 1000 can be directly adjusted to a desired size according to the distance recorded by the dial indicator 1060. Of course, in other embodiments, the top block 1064 may be fixedly disposed on the guide block 102, and correspondingly, the mounting plate 1062 is fixedly disposed on the support block 100.
Referring to fig. 2 and 3, fig. 2 is a schematic front view of a cam according to a second embodiment of the present invention, and fig. 3 is a schematic perspective view of the cam of fig. 2. The cam 20 in the present embodiment includes a support block 200 and a guide block 202; the support block 200 includes a bottom surface 2000 and a first adjustment surface 2002, the bottom surface 2000 is configured to be fixedly coupled to the frame, and the guide block 202 is slidably disposed on the support block 200. Unlike the first embodiment, the guide block 202 includes a first movable block 2020 and a second movable block 2022, the first movable block 2020 being located between the support block 200 and the second movable block 2022; the first movable block 2020 includes a second adjusting surface 20200 and a third adjusting surface 20202, the second movable block 2022 includes a fourth adjusting surface 20220 and a guiding surface 20222, the fourth adjusting surface 20220 is attached to the third adjusting surface 20202, and the second movable block 2022 is slidably disposed on the first movable block 2020; the first movable block 2020 is matched with the first adjusting surface 2002 through the second adjusting surface 20200 to enable the first movable block 2020 to slide relative to the supporting block 200, and when the first movable block 2020 slides relative to the supporting block 200, the second movable block 2022 is matched with the fourth adjusting surface 20220 through the third adjusting surface 20202 to enable the second movable block 2022 to be close to or far away from the supporting block 200, so that the distance between the guide surface 20222 and the bottom surface 2000 is adjusted. Further differing from the first embodiment, in this embodiment, the relative movement of the first and second adjustment surfaces 2002, 20200 is not used to adjust the distance between the guide surface 20222 and the bottom surface 2000, but only to achieve the relative movement of the third and fourth adjustment surfaces 20202, 20220 (described in detail below). Thus, the first adjusting surface 2002 and the second adjusting surface 20200 may be inclined surfaces arranged in parallel, or may be horizontal surfaces, and the third adjusting surface 20202 and the fourth adjusting surface 20220 may be inclined surfaces arranged in parallel; alternatively, the first adjusting surface 2002 and the second adjusting surface 20200 may be inclined surfaces arranged in parallel, and the third adjusting surface 20202 and the fourth adjusting surface 20220 may be inclined surfaces arranged in parallel or horizontal surfaces. It is understood that, when the first adjusting surface 2002 and the second adjusting surface 20200 are inclined surfaces disposed in parallel, and the third adjusting surface 20202 and the fourth adjusting surface 20220 are inclined surfaces disposed in parallel, the inclined surfaces of the four surfaces may be parallel or not parallel, so that the adjustment of the distance between the guiding surface 20222 and the bottom surface 2000 can be achieved.
In this embodiment, the cam 20 is formed by splicing the support block 200, the first movable block 2020 and the second movable block 2022, where the support block 200 includes a bottom surface 2000 and a first adjusting surface 2002, because the support block 200 may be fixedly connected to the frame through the bottom surface 2000, that is, the support block 200 is fixed relative to the driven member, and the first movable block 2020 is slidably connected to the support block 200, and the first movable block 2020 includes a second adjusting surface 20200 and a third adjusting surface 20202, so that the first movable block 2020 may slide relative to the support block 200, specifically, because the second adjusting surface 20200 is attached to the first adjusting surface 2002, and the first movable block 2020 may slide relative to the support block 200 by matching the second adjusting surface 20200 with the first adjusting surface 2002; moreover, since the second movable block 2022 includes the fourth adjusting surface 20220 and the guiding surface 20222, the fourth adjusting surface 20220 is attached to the third adjusting surface 20202, when the first movable block 2020 slides relative to the supporting block 200, the first movable block 2020 can also slide relative to the second movable block 2022 at the same time; it will be appreciated that when the first movable block 2020 slides relative to the support block 200 through the cooperation of the second adjusting surface 20200 and the first adjusting surface 2002, the first movable block 2020 can simultaneously drive the second movable block 2022 to approach or separate from the support block 200 through the cooperation of the third adjusting surface 20202 and the fourth adjusting surface 20220, so as to adjust the distance between the guide surface 20222 and the bottom surface 2000. Since the cam 20 guides the follower to move through the guide surface 20222, when the distance between the guide surface 20222 and the bottom surface 2000 deviates from the preset position of the follower to be guided, the first movable block 2020 can slide relative to the support block 200 to drive the second movable block 2022 to approach or separate from the support block 200, and when the second movable block 2022 approaches or separates from the support block 200, the distance between the guide surface 20222 of the second movable block 2022 and the bottom surface 2000 of the support block 200 can be correspondingly reduced or increased, so that the height of the cam 20 is changed, and the adaptability of the cam 20 is high.
Further, the cam 20 includes a connection block 204, and the connection block 204 is connected to the support block 200, the first movable block 2020, and the second movable block 2022, respectively; specifically, the connection block 204 is connected to the first movable block 2020 through a first mounting hole 2040 and a second mounting hole 2042 that are mutually matched, where the first mounting hole 2040 is a waist-shaped hole, and the first mounting hole 2040 is disposed along an extending direction parallel to the first adjusting surface 2002 or the second adjusting surface 20200; the connection block 204 is fixedly connected with one of the support block 200 and the second movable block 2022, and the connection block 204 is connected with the other of the support block 200 and the second movable block 2022 through a third mounting hole 2044 and a fourth mounting hole 2046 which are mutually matched, wherein the third mounting hole 2044 is a waist-shaped hole, and the third mounting hole 2044 is arranged along a moving direction parallel to the second movable block 2022 when approaching or separating from the support block 200.
As shown in fig. 2, in this embodiment, one end of the connection block 204 is fixedly connected to the support block 200, a second mounting hole 2042 is formed on the first movable block 2020, and a first mounting hole 2040 is formed on the connection block 204 corresponding to the second mounting hole 2042, and since the first mounting hole 2040 is a waist-shaped hole, the first mounting hole 2040 is formed in a direction parallel to the extending direction of the first adjusting surface 2002 or the third adjusting surface 20202, specifically, the extending direction of the first mounting hole 2040 is the moving direction of the first movable block 2020 relative to the support block 200, or the moving direction of the second movable block 2022 relative to the first movable block 2020, the second mounting hole 2042 may be a screw hole, and the second mounting hole 2042 is exposed in the first mounting hole 2040, and the first movable block 2020 and the support block 200 are fixed or unfixed by locking or unlocking the first mounting hole 2040 and the second mounting hole 2042. When the height of the cam 20 is adjusted, the first and second mounting holes 2040 and 2042 are released so that the first movable block 2020 and the support block 200 can slide relatively. Further, in order to ensure that the second mounting hole 2042 can be always exposed in the first mounting hole 2040, a plurality of second mounting holes 2042 may be provided at intervals along the extending direction of the first adjustment surface 2002 or the third adjustment surface 20202, whereby the second mounting holes 1042 are always exposed in the first mounting hole 2040 when the first adjustment surface 2002 and the second adjustment surface 20200 are slid relatively. The support block 100 and the first movable block 2020 may be fixed by adjusting the cam 20 to a desired height and locking the first mounting hole 2040 and the second mounting hole 2042. In addition, a fourth mounting hole 2046 is formed in the second movable block 2022, and a third mounting hole 2044 is formed in the connecting block 204 at a position corresponding to the fourth mounting hole 2046, and since the third mounting hole 2044 is a waist-shaped hole, the third mounting hole 2044 is formed in a direction parallel to a moving direction of the second movable block 2022 when approaching or separating from the supporting block 200, for example, a direction perpendicular to the bottom surface 2000 (i.e., a height direction of the cam 20) shown in fig. 2, the fourth mounting hole 2046 may be a screw hole, so that when the first movable block 2020 simultaneously cooperates with the fourth adjusting surface 20220 through the third adjusting surface 20202 to drive the second movable block 2022 to approach or separate from the supporting block 200, the fourth mounting hole 2046 may be always exposed in the third mounting hole 2044. Of course, in other embodiments, the first mounting hole 2040 may be formed on the first movable block 2020, and the corresponding second mounting hole 2042 is formed on the supporting block 200; similarly, the third mounting hole 2044 may be formed on the second movable block 2022, and the corresponding fourth mounting hole 2046 may be formed on the supporting block 200; in addition, the connection block 204 may be fixedly connected with the second movable block 2022, and the connection block 204 may be connected with the support block 200 through a third mounting hole 2044 and a fourth mounting hole 2046 which are mutually matched; and one or more of the connection blocks 204 of the present application may be provided according to actual needs.
In a specific application scenario, the first mounting hole 2040 and the second mounting hole 2042 may be fixed by bolts, and when the distance between the guide surface 20222 of the second movable block 2022 and the bottom surface 2000 of the supporting block 200 needs to be adjusted, the bolts between the first mounting hole 2040 and the second mounting hole 2042 are loosened first, so that the second adjusting surface 20200 slides relatively to the first adjusting surface 2002; since the third mounting hole 2044 and the fourth mounting hole 2046 may be fixed by bolts, at this time, the bolts between the third mounting hole 2044 and the fourth mounting hole 2046 are loosened, the second movable block 2022 is moved closer to or further away from the supporting block 200 due to the sliding of the first movable block 2020, when the second movable block 2022 is moved closer to or further away from the supporting block 200 to a certain position due to the sliding of the first movable block 2020, a desired distance is reached between the guide surface 20222 and the bottom surface 2000, i.e., the guide surface 20222 is adjusted to a desired height, and then bolts are inserted into the first mounting hole 2040 and the second mounting hole 2042 and locked, and then the bolts are inserted into the third mounting hole 2044 and the fourth mounting hole 2046 and locked, thereby fixing the cam 20. Compared with the first embodiment, in this embodiment, the position of the second movable block 2022 and the supporting block 200 in the height direction can be adjusted by the transmission of the first movable block 2020, but the positions of the second movable block 2022 and the supporting block in the extending direction of the guiding surface 20222 can be relatively fixed, so that the height of the cam 20 can be adjusted without affecting the position of the cam 20.
Further, a plurality of second mounting holes 2042 may be formed on the first movable block 2020 or the connection block 204 in a direction parallel to the extending direction of the first adjusting surface 2002 or the third adjusting surface 20202, so as to ensure that at least one second mounting hole 2042 is exposed in the first mounting hole 2040. Similarly, a plurality of fourth mounting holes 2046 may be formed on the second movable block 2022, the supporting block 200, or the connecting block 204 in a direction parallel to the sliding direction of the second movable block 2022 relative to the supporting block 200, so as to ensure that at least one fourth mounting hole 2046 is exposed in the third mounting hole 2044.
Further, in order to ensure that only the height of the cam 20 is adjusted without affecting the position of the cam 20, the cam 20 may further include a guide block 208, the guide block 208 being fixedly provided at a side of one of the support block 200 and the second movable block 2022, the guide block 208 including a catching groove 2080 formed to be recessed in parallel to a moving direction when the second movable block 2022 approaches or moves away from the support block 200, a side of the other of the support block 200 and the second movable block 2022 being inserted in the catching groove 2080 and being slidable in the catching groove 2080. It will be appreciated that the guide block 208 may be fixedly disposed on the side of the support block 200 or on the side of the second movable block 2022; for example, when the guide block 208 is fixedly disposed on the side surface of the support block 200, the side surface of the second movable block 2022 is inserted into the clamping groove 2080 and is slidable in the clamping groove 2080, so that the guide block 208 can limit the sliding direction of the second movable block 2022 to be the opening direction of the clamping groove 2080, for example, the direction perpendicular to the bottom surface 2000 as shown in fig. 2.
In addition, the point of the guide block 208 farthest from the bottom surface 2000 is defined as the highest point of the guide block 208, and the highest point of the guide block 208 is located on the side, close to the bottom surface 2000, of the extending direction of the guide surface 20222, that is, the guide block 208 does not protrude from the guide surface 20222 and the extending surface where the guide surface 20222 is located, so that the guide block 208 does not block the guided follower when the guide follower moves.
Further, taking the example that the two guide blocks 208 are fixedly arranged on the side surfaces of the supporting block 200 as two guide blocks 208, the two guide blocks 208 are respectively arranged on two sides of the extending direction of the supporting block 200, and the two side surfaces of the extending direction of the second movable block 2022 are respectively inserted into the clamping grooves 2080 of the guide blocks 208 on the corresponding sides; it should be noted that, since the first movable block 2020 moves in the extending direction of the support block 200 and the second movable block 2022 relative to the first movable block 2020 between the two guide blocks 208, the length of the first movable block 2020 in the extending direction is smaller than that of the support block 200 and the second movable block 2022, and the support block 200 and the second movable block 2022 are defined in relative positions by the guide blocks 208 in the extending direction. As shown in fig. 2, two guide blocks 208 are respectively disposed at two sides of the supporting block 200, and at the same time, two sides of the second movable block 2022 are respectively clamped in corresponding clamping grooves 2080; it can be appreciated that the clamping grooves 2080 on two sides of the second movable block 2022 can guide the sliding of the second movable block 2022 relative to the supporting block 200 in the vertical direction, and can limit the sliding of the fourth adjusting surface 20220 of the second movable block 2022 along the third adjusting surface 20202 of the first movable block 2020, so as to simplify the adjustment process of the distance between the guiding surface 20222 and the bottom surface 2000, and make the adjustment more convenient, faster and stable. Thus, when the first movable block 2020 slides relative to the support block 200, the second adjustment surface 20200 of the first movable block 2020 slides along the first adjustment surface 2002 of the support block 200, and the third adjustment surface 20202 of the first movable block 2020 slides along the fourth adjustment surface 20220 of the second movable block 2022, such that the second movable block 2022 is only movable in a vertical direction; thus, when the second adjusting surface 20200 of the first movable block 2020 slides along the first adjusting surface 2002 of the supporting block 200 and the third adjusting surface 20202 of the first movable block 2020 slides along the fourth adjusting surface 20220 of the second movable block 2022, the second adjusting surface 20200 is blocked by the guide blocks 208 on both sides, and cannot slide further beyond the outer side of the guide blocks 208. It will be appreciated that when the cam 20 of the present application is used for fine adjustment, the clearance between the first movable block 2020 and the guide block 208 need not be too large, since there is generally no too large deviation in the distance between the guide surface 20222 and the bottom surface 2000, and the guide block 208 can define the range of motion of the first movable block 2020, avoiding overshooting of the first movable block 2020.
Further, taking the fixing of the guide block 208 on the side of the support block 200 as an example, referring to fig. 3, the guide block 208 and the second movable block 2022 may be connected through a fifth mounting hole 2082 and a sixth mounting hole 2084 that are mutually matched, where the fifth mounting hole 2082 is a waist-shaped hole, and the fifth mounting hole 2082 is disposed along a moving direction parallel to when the second movable block 222 approaches or approaches the support block 200. For example, the second movable block 2022 is provided with a sixth mounting hole 2084, and the guide block 208 is provided with a fifth mounting hole 2082 at a position corresponding to the sixth mounting hole 2084, and since the fifth mounting hole 2082 is a waist-shaped hole, the fifth mounting hole 2082 is provided in a direction parallel to the moving direction of the second movable block 2022 toward or away from the support block 200, the sixth mounting hole 2084 may be a screw hole, so when the second movable block 2022 slides in the clamping groove 2080 of the guide block 208 relative to the support block 200, i.e., when the second movable block 2022 approaches or moves away from the support block 200, the sixth mounting hole 2084 may be always exposed in the fifth mounting hole 2082, and then after the second movable block 2022 slides to a desired position, the fifth mounting hole 2082 and the sixth mounting hole 2084 may be fixed by bolts to fix the second movable block 2022 and the guide block 208. Of course, in other embodiments, the fifth mounting hole 2082 may be formed on the second movable block 2022, and the corresponding sixth mounting hole 2084 may be formed on the guide block 208.
Further, the support block 200 further includes an adjustment block 2004 and a bottom block 2006, the adjustment block 2004 being located between the guide block 202 and the bottom block 2006; the adjusting block 2004 comprises a first adjusting surface 2002 and a fifth adjusting surface 20040, the bottom block 2006 comprises a sixth adjusting surface 20060 and a bottom surface 2000, and the fifth adjusting surface 20040 is jointed with the sixth adjusting surface 20060; the adjustment block 2004 slides relative to the bottom block 2006 by the fifth adjustment surface 20040 cooperating with the sixth adjustment surface 20060 to adjust the relative position between the guide surface 20222 and the bottom surface 2000 while maintaining the distance between the guide surface 20222 and the bottom surface 2000. It will be appreciated that the adjustment of the distance between the guide surface 20222 and the bottom surface 2000 can be achieved by the sliding fit between the support block 200 and the guide block 202; however, in practical applications, the installation position of the entire cam 20 may deviate from the actual required position, and besides there may be a deviation in the height between the guide surface 20222 and the bottom surface 2000, there may also be a deviation in the position in a plane perpendicular to the height direction between the guide surface 20222 and the bottom surface 2000, and by the sliding fit between the support block 200 and the guide block 202, only the distance between the guide surface 20222 and the bottom surface 2000 can be adjusted, or the position in the horizontal plane is changed while the distance is adjusted, which cannot ensure that the adjustment of the horizontal position is achieved without changing the height of the cam. Therefore, the bottom block 2006 comprises a sixth adjusting surface 20060 and a bottom surface 2000, so the bottom block 2006 can be fixedly connected with the frame through the bottom surface 2000, the adjusting block 2004 comprises a first adjusting surface 2002 and a fifth adjusting surface 20040, the fifth adjusting surface 20040 is attached to the sixth adjusting surface 20060, and the sliding of the adjusting block 2004 relative to the bottom block 2006 can be realized through the cooperation of the fifth adjusting surface 20040 and the sixth adjusting surface 20060; the fifth adjusting surface 20040 and the sixth adjusting surface 20060 are horizontal surfaces extending along the extending direction of the supporting block 200 and the guiding block 202, and the sliding of the adjusting block 2004 relative to the bottom block 2006 does not affect the distance between the guiding surface 20222 and the bottom surface 2000, and only the position of the guiding surface 20222 in the plane perpendicular to the height direction between the guiding surface 20222 and the bottom surface 2000 is adjusted.
Further, the adjusting block 2004 and the bottom block 2006 may be connected by a seventh mounting hole 20042 and an eighth mounting hole 20062 that cooperate with each other, wherein the seventh mounting hole 20042 is a waist-shaped hole, and the seventh mounting hole 20042 is disposed in a direction parallel to a sliding direction of the adjusting block 2004 relative to the bottom block 2006.
As shown in fig. 3, the supporting block 200 in this embodiment includes a bottom block 2006 and an adjusting block 2004 with a first adjusting surface 2002, which are fixed relative to the frame, and a fifth adjusting surface 20040 of the adjusting block 2004 is attached to a sixth adjusting surface 20060 of the bottom block 2006; a seventh mounting hole 20042 is formed in the adjusting block 2004, and an eighth mounting hole 20062 is formed in the bottom block 2006 at a position corresponding to the seventh mounting hole 20042, wherein the seventh mounting hole 20042 is a waist-shaped hole, the seventh mounting hole 20042 is formed in a direction parallel to a sliding direction of the adjusting block 2004 relative to the bottom block 2006, the eighth mounting hole 20062 may be a screw hole, and when the fifth adjusting surface 20040 and the sixth adjusting surface 20060 slide relatively, the eighth mounting hole 20062 may be always exposed in the seventh mounting hole 20042. Of course, in other embodiments, the seventh mounting hole 20042 may be formed in the bottom block 2006, and the corresponding eighth mounting hole 20062 may be formed in the adjusting block 2004. It will be appreciated that the direction of sliding of the adjusting block 2004 relative to the bottom block 2006 may be any direction along a horizontal plane perpendicular to the height direction of the cam, may be any direction along which the arc-shaped structure of the cam 20 extends as in fig. 3, and may be any direction along which the guide surface 20222 is oriented in the direction of the cam 20, or may be any direction along which the guide surface 20222 is oriented in the front-rear or left-right direction.
In a specific application scenario, the seventh mounting hole 20042 and the eighth mounting hole 20062 may be fixed by bolts, when the position of the guide surface 20222 in a plane perpendicular to the height direction between the guide surface 20222 and the bottom surface 2000 needs to be adjusted, the bolts between the seventh mounting hole 20042 and the eighth mounting hole 20062 are loosened first, so that the fifth adjusting surface 20040 and the sixth adjusting surface 20060 may slide relatively, and when the adjusting block 2004 slides to a certain position relative to the bottom block 2006 by the cooperation of the fifth adjusting surface 20040 and the sixth adjusting surface 20060, the position of the guide surface 20222 in the plane perpendicular to the height direction between the guide surface 20222 and the bottom surface 2000 meets the requirement, that is, the guide surface 20222 is adjusted to a required position, and then the bolts are inserted into the seventh mounting hole 20042 and the eighth mounting hole 20062 and locked, that is, so that the adjusting block 2004 and the bottom block 2006 may be fixed.
Further, a plurality of eighth mounting holes 20062 may be formed in the adjusting block 2004 or the bottom block 2006 in a direction parallel to the sliding direction of the adjusting block 2004 with respect to the bottom block 2006, so as to ensure that at least one eighth mounting hole 20062 is exposed in the seventh mounting hole 20042.
Further, the cam 20 also includes a registration assembly 206, the registration assembly 206 including a dial gauge 2060, a mounting plate 2062, and a top block 2064; the top block 2064 is fixedly disposed on one of the support block 200 and the guide block 202, the mounting plate 2062 is fixedly disposed on the other of the support block 200 and the guide block 202, the dial indicator 2060 is disposed on the mounting plate 2062, the dial indicator 2060 includes an abutting end 20600, and the abutting end 20600 is used to abut against the top block 2064 to record the distance between the mounting plate 2062 and the top block 2064. For the recording component 206, please refer to the related content of the recording component 106 in the first embodiment, and the description thereof is omitted. The difference is that, because the recording component 206 is configured to record the distance between the guide surface 20222 and the bottom surface 2000, when the top block 2064 is fixedly disposed on the second movable block 2022 where the guide surface 20222 is located, the mounting plate 2062 may be fixedly disposed on the supporting block 200 or the first movable block 2020; when the mounting plate 2062 is fixedly disposed on the second movable block 2022 on which the guide surface 20222 is disposed, the top block 2064 may be fixedly disposed on the support block 200 or the first movable block 2020.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of a cam mechanism according to the present application. The cam mechanism 40 of the present application includes: a frame 400 and a follower 402; the cam 404, the cam 404 includes a bottom surface 4040 and a guiding surface 4042, the cam 404 is fixedly connected with the frame 400 through the bottom surface 4040, and the cam 404 guides the follower 402 to move through the guiding surface 4042, wherein the cam 404 is the cam 10 or the cam 20.
In the cam mechanism 40 of the application, since the distance between the bottom surface 4040 and the guide surface 4042 of the cam 404 can be adjusted, and since the cam 404 guides the movement of the follower 402 through the guide surface 4042, when the distance between the guide surface 4042 and the bottom surface 4040 deviates from the preset position of the follower 402 to be guided, the height of the cam 404 can be changed by adjusting the distance between the bottom surface 4040 and the guide surface 4042 of the cam 404, so that the self-adaption of the cam mechanism 40 is high. For details regarding the cam 404, reference is made to the embodiments of the cam 10 or cam 20 structures described above.
In the several embodiments provided by the present invention, it should be understood that the disclosed cams and cam mechanisms may be implemented in other ways. For example, the embodiments of the cam and cam mechanism described above are merely illustrative, and the division of the functional parts is merely a logical functional division, and there may be other manners of dividing the functional parts in actual implementation, for example, a plurality of functional parts may be combined or may be integrated into several modules, or the functional parts may be physically present separately, or the like.
The foregoing description is only of embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent principle changes made by the specification and drawings of the present invention, or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (10)
1. A cam disposed on a frame for guiding movement of a follower, the cam comprising:
The support block comprises a bottom surface and a first adjusting surface, and the bottom surface is used for being connected with the frame;
The guide block comprises a guide surface and a second adjusting surface, the guide surface is used for guiding the driven piece to move, and the second adjusting surface is attached to the first adjusting surface; the first adjusting surface and the second adjusting surface are inclined surfaces which are arranged in parallel, and the guide block is matched with the first adjusting surface through the second adjusting surface to realize sliding relative to the support block so as to adjust the distance between the guide surface and the bottom surface.
2. The cam of claim 1, wherein the cam comprises:
The connecting blocks are respectively connected with the supporting blocks and the guide blocks; the connecting block with one of the supporting shoe with one fixed connection in the guide piece, the connecting block with another of the supporting shoe with the guide piece is connected through first mounting hole and the second mounting hole of mutually supporting, wherein, first mounting hole is waist type hole, first mounting hole is along being parallel to the extending direction setting of first regulation face.
3. The cam of claim 1, wherein the cam is configured to move,
The guide block comprises a first movable block and a second movable block, and the first movable block is positioned between the support block and the second movable block; the first movable block comprises a second adjusting surface and a third adjusting surface, the second movable block comprises a fourth adjusting surface and a guiding surface, and the fourth adjusting surface is attached to the third adjusting surface; the first movable block is matched with the first adjusting surface through the second adjusting surface to realize sliding relative to the supporting block, and the second movable block is matched with the fourth adjusting surface through the third adjusting surface to enable the second movable block to be close to or far away from the supporting block when the first movable block slides relative to the supporting block, so that the distance between the guide surface and the bottom surface is adjusted.
4. A cam according to claim 3, characterized in that it comprises:
The connecting block is respectively connected with the supporting block, the first movable block and the second movable block;
The connecting block is connected with the first movable block through a first mounting hole and a second mounting hole which are matched with each other, wherein the first mounting hole is a waist-shaped hole, and the first mounting hole is arranged along the extending direction parallel to the first adjusting surface or the second adjusting surface;
The connecting block is fixedly connected with one of the supporting block and the second movable block, the connecting block is connected with the other one of the supporting block and the second movable block through a third mounting hole and a fourth mounting hole which are matched with each other, wherein the third mounting hole is a waist-shaped hole, and the third mounting hole is arranged along a moving direction parallel to the second movable block when the second movable block is close to or far away from the supporting block.
5. A cam according to claim 3, characterized in that it comprises:
The guide block is fixedly arranged on the side face of one of the supporting block and the second movable block, the guide block comprises a clamping groove which is formed by sinking along the moving direction parallel to the second movable block when the second movable block is close to or far away from the supporting block, and the side face of the other one of the supporting block and the second movable block is inserted into the clamping groove and can slide in the clamping groove.
6. The cam as claimed in claim 5, wherein,
The guide block is connected with the second movable block or the supporting block through a fifth installation hole and a sixth installation hole which are matched with each other, wherein the fifth installation hole is a waist-shaped hole, and the fifth installation hole is arranged along a moving direction parallel to the second movable block when the second movable block is close to or far away from the supporting block.
7. The cam as claimed in any one of claims 1-6, wherein,
The supporting block comprises an adjusting block and a bottom block, and the adjusting block is positioned between the guide block and the bottom block; the adjusting block comprises a first adjusting surface and a fifth adjusting surface, the bottom block comprises a sixth adjusting surface and a bottom surface, and the fifth adjusting surface is attached to the sixth adjusting surface; the adjusting block is matched with the sixth adjusting surface through the fifth adjusting surface to realize sliding relative to the bottom block, so that the relative position between the guide surface and the bottom surface is adjusted under the condition that the distance between the guide surface and the bottom surface is kept unchanged.
8. The cam as claimed in claim 7, wherein,
The adjusting block is connected with the bottom block through a seventh installation hole and an eighth installation hole which are matched with each other, wherein the seventh installation hole is a waist-shaped hole, and the seventh installation hole is arranged along a direction parallel to the sliding direction of the adjusting block relative to the bottom block.
9. The cam of claim 1, wherein the cam further comprises:
The recording assembly comprises a dial indicator, a mounting plate and a top block; the supporting block is fixedly arranged on one of the supporting block and the guiding block, the mounting plate is fixedly arranged on the other one of the supporting block and the guiding block, the dial indicator is arranged on the mounting plate and comprises an abutting end, and the abutting end is used for abutting against the supporting block so as to record the distance between the mounting plate and the supporting block.
10. A cam mechanism, comprising:
A frame and a follower;
a cam comprising a bottom surface and a guide surface, the cam being connected to the frame by the bottom surface, the cam guiding the movement of the follower by the guide surface, the cam being as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910538653.8A CN110185768B (en) | 2019-06-20 | Cam and cam mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910538653.8A CN110185768B (en) | 2019-06-20 | Cam and cam mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110185768A CN110185768A (en) | 2019-08-30 |
| CN110185768B true CN110185768B (en) | 2024-06-04 |
Family
ID=
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB903674A (en) * | 1959-08-24 | 1962-08-15 | Sangamo Weston | Improvements in or relating to adjustable cam devices |
| GB955665A (en) * | 1960-01-07 | 1964-04-15 | Lucas Industries Ltd | Adjustable profile cams |
| CN103597251A (en) * | 2011-04-29 | 2014-02-19 | 雷蛇(亚太)私人有限公司 | A cam mechanism |
| DE102014214954B3 (en) * | 2014-07-30 | 2015-12-03 | Schaeffler Technologies AG & Co. KG | Sliding cam system with XS groove with spring plate |
| JP2016145615A (en) * | 2015-02-09 | 2016-08-12 | 日本精工株式会社 | Cam device with reduction mechanism and position adjustment device of steering wheel |
| CN210290645U (en) * | 2019-06-20 | 2020-04-10 | 无锡先导智能装备股份有限公司 | Cam and cam mechanism |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB903674A (en) * | 1959-08-24 | 1962-08-15 | Sangamo Weston | Improvements in or relating to adjustable cam devices |
| GB955665A (en) * | 1960-01-07 | 1964-04-15 | Lucas Industries Ltd | Adjustable profile cams |
| CN103597251A (en) * | 2011-04-29 | 2014-02-19 | 雷蛇(亚太)私人有限公司 | A cam mechanism |
| DE102014214954B3 (en) * | 2014-07-30 | 2015-12-03 | Schaeffler Technologies AG & Co. KG | Sliding cam system with XS groove with spring plate |
| JP2016145615A (en) * | 2015-02-09 | 2016-08-12 | 日本精工株式会社 | Cam device with reduction mechanism and position adjustment device of steering wheel |
| CN210290645U (en) * | 2019-06-20 | 2020-04-10 | 无锡先导智能装备股份有限公司 | Cam and cam mechanism |
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